1.Effects of tramadol hydrochloride preemptive analgesia in kyphoplasty of thoracolumbar osteoporotic fractures un-der local anesthesia
Guo-Qing LI ; Hua-Guo ZHAO ; Shao-Hua SUN ; Wei-Hu MA ; Hao-Jie LI ; Yang WANG ; Lian-Song LU ; Chao-Yue RUAN
China Journal of Orthopaedics and Traumatology 2024;37(6):560-564
Objective To explore preemptive analgesic effect of preoperative intramural tramadol injection in percutaneous kyphoplasty(PKP)of vertebrae following local anesthesia.Methods From August 2019 to June 2021,118 patients with thora-co lumbar osteoporotic fractures were treated and divided into observation group and control group,with 59 patients in each gruop.In observation group,there were 26 males and 33 females,aged from 57 to 80 years old with an average of(67.69±4.75)years old;14 patients on T11,12 patients on T12,18 patients on L1,15 patients on L2;tramadol with 100 mg was injected intramuscularly half an hour before surgery in observation group.In control group,there were 24 males and 35 females,aged from 55 to 77 years old with an average of(68.00±4.43)years old;19 patients on T11,11 patients on T12,17patients on L1,12 patients on L2;the same amount of normal saline was injected intramuscularly in control group.Observation indicators included operation time,intraoperative bleeding,visual analogue scale(VAS)evaluation and recording of preoperative(T0),intraoper-ative puncture(T1),and working cannula placement(T2)between two groups of patients,at the time of balloon dilation(T3),when the bone cement was injected into the vertebral body(T4),2 hours after the operation(T5),and the pain degree at the time of discharge(T6);adverse reactions such as dizziness,nausea and vomiting were observed and recorded;the record the patient's acceptance of repeat PKP surgery.Results All patients were successfully completed PKP via bilateral pedicle ap-proach,and no intravenous sedative and analgesic drugs were used during the operation.There was no significant difference in preoperative general data and VAS(T0)between two groups(P>0.05).There was no significant difference in operation time and intraoperative blood loss between the two groups(P>0.05).VAS of T1,T2,T3,T4 and T5 in observation group were all lower than those in control group(P<0.05),and there was no significant difference in T6 VAS(P>0.05).T6 VAS between two groups were significantly lower than those of T0,and the difference was statistically significant(P<0.05).There was no signifi-cant difference in incidence of total adverse reactions between two groups(P>0.05).There was a statistically significant differ-ence in the acceptance of repeat PKP surgery(P<0.05).Conclusion Half an hour before operation,intramuscular injection of tramadol has a clear preemptive analgesic effect for PKP of single-segment thoracolumbar osteoporotic fracture vertebral body under local anesthesia,which could increase the comfort of patients during operation and 2 hours after operation,and improve patients satisfaction with surgery.
2.Plasma components of Danzhi Xiaoyao Formula and its mechanism of action in treating perimenopausal depression based on UPLC-Q-TOF-MS~E integrated with network pharmacology.
Meng-Ying LI ; Zi-Wei LIU ; Yu-Cheng LI ; Jian-Ye QUAN ; Ying-Lan NIE ; Hai-Ming ZHANG ; Mei-Yu ZHANG ; Xiao-Mei LIAN ; Li YANG ; Wen-Qing HU ; Jian SUN
China Journal of Chinese Materia Medica 2023;48(24):6765-6777
In this study, ultra-performance liquid chromatography-quadrupole-time-of-flight tandem mass spectrometry(UPLC-Q-TOF-MS~E) was used to analyze the plasma components of Danzhi Xiaoyao Formula after oral administration. Forty-nine plasma components were found in the serum of rats by comparing the compound extract, drug-containing serum, and blank serum. Components, such as 6-hydroxycoumarin, poricoic acid F, deoxoglabrolide, 30-norhederagenin, kanzonol R, 3',6'-di-O-galloylpaeoniflorin, 16α-hydroxytrametenolic acid, 16-deoxyporicoic acid B, 3-O-acetyl-16α-hydroxytrametenolic acid, and 16α,25-dihydroxydehydroeburiconic acid, were first found in rat serum. Behavioral tests, including the tail suspension test, novel object recognition test, and novelty-suppressed feeding test, were conducted for behavioral analysis. It was confirmed that this formula had therapeutic effects on perimenopausal depression. Furthermore, in combination with the network pharmacology method, 53 core targets including MAPK1, HRAS, AKT1, EGFR, and ESR1 were screened, and these targets participated in 165 signaling pathways, including PI3K-AKT, AMPK, VEGFA, MAPK, and HIF-1. In summary, the potential effects of Danzhi Xiaoyao Formula in treating perimenopausal depression are associated with mechanisms in accelerating inflammation repair, improving neuroplasticity, affecting neurotransmitters, regulating estrogen levels, and promoting new blood vessel formation.
Animals
;
Rats
;
Chromatography, High Pressure Liquid
;
Depression/drug therapy*
;
Network Pharmacology
;
Perimenopause
;
Phosphatidylinositol 3-Kinases
;
Drugs, Chinese Herbal/pharmacology*
;
Molecular Docking Simulation
3.Lifestyle improvement and the reduced risk of cardiovascular disease: the China-PAR project.
Ying-Ying JIANG ; Fang-Chao LIU ; Chong SHEN ; Jian-Xin LI ; Ke-Yong HUANG ; Xue-Li YANG ; Ji-Chun CHEN ; Xiao-Qing LIU ; Jie CAO ; Shu-Feng CHEN ; Ling YU ; Ying-Xin ZHAO ; Xian-Ping WU ; Lian-Cheng ZHAO ; Ying LI ; Dong-Sheng HU ; Jian-Feng HUANG ; Xiang-Feng LU ; Dong-Feng GU
Journal of Geriatric Cardiology 2023;20(11):779-787
BACKGROUND:
The benefits of healthy lifestyles are well recognized. However, the extent to which improving unhealthy lifestyles reduces cardiovascular disease (CVD) risk needs to be discussed. We evaluated the impact of lifestyle improvement on CVD incidence using data from the China-PAR project (Prediction for Atherosclerotic Cardiovascular Disease Risk in China).
METHODS:
A total of 12,588 participants free of CVD were followed up for three visits after the baseline examination. Changes in four lifestyle factors (LFs) (smoking, diet, physical activity, and alcohol consumption) were assessed through questionnaires from the baseline to the first follow-up visit. Cox proportional hazard models were used to estimate hazard ratios (HRs) and corresponding 95% confidence intervals (CIs). The risk advancement periods (RAPs: the age difference between exposed and unexposed participants reaching the same incident CVD risk) and population-attributable risk percentage (PAR%) were also calculated.
RESULTS:
A total of 909 incident CVD cases occurred over a median follow-up of 11.14 years. Compared with maintaining 0-1 healthy LFs, maintaining 3-4 healthy LFs was associated with a 40% risk reduction of incident CVD (HR = 0.60, 95% CI: 0.45-0.79) and delayed CVD risk by 6.31 years (RAP: -6.31 [-9.92, -2.70] years). The PAR% of maintaining 3-4 unhealthy LFs was 22.0% compared to maintaining 0-1 unhealthy LFs. Besides, compared with maintaining two healthy LFs, improving healthy LFs from 2 to 3-4 was associated with a 23% lower risk of CVD (HR = 0.77, 95% CI: 0.60-0.98).
CONCLUSIONS
Long-term sustenance of healthy lifestyles or improving unhealthy lifestyles can reduce and delay CVD risk.
4.Recompensation of complications in patients with hepatitis B virus-related decompensated cirrhosis treated with entecavir antiviral therapy.
Ting ZHANG ; You DENG ; Hai Yan KANG ; Hui Ling XIANG ; Yue Min NAN ; Jin Hua HU ; Qing Hua MENG ; Ji Lian FANG ; Jie XU ; Xiao Ming WANG ; Hong ZHAO ; Calvin Q PAN ; Ji Dong JIA ; Xiao Yuan XU ; Wen XIE
Chinese Journal of Hepatology 2023;31(7):692-697
Objective: To analyze the occurrence of recompensation conditions in patients with chronic hepatitis B virus-related decompensated cirrhosis after entecavir antiviral therapy. Methods: Patients with hepatitis B virus-related decompensated cirrhosis with ascites as the initial manifestation were prospectively enrolled. Patients who received entecavir treatment for 120 weeks and were followed up every 24 weeks (including clinical endpoint events, hematological and imaging indicators, and others) were calculated for recompensation rates according to the Baveno VII criteria. Measurement data were compared using the Student t-test or Mann-Whitney U test between groups. Categorical data were compared by the χ (2) test or Fisher's exact probability method between groups. Results: 283 of the 320 enrolled cases completed the 120-week follow-up, and 92.2% (261/283) achieved a virological response (HBV DNA 20 IU/ml). Child-Pugh and MELD scores were significantly improved after treatment (8.33 ± 1.90 vs. 5.77 ± 1.37, t = 12.70, P < 0.001; 13.37 ± 4.44 vs. 10.45 ± 4.58, t = 5.963, P < 0.001). During the 120-week follow-up period, 14 cases died, two received liver transplants, 19 developed hepatocellular cancer, 11 developed gastroesophageal variceal bleeding, and four developed hepatic encephalopathy. 60.4% (171/283) (no decompensation events occurred for 12 months) and 56.2% (159/283) (no decompensation events occurred for 12 months and improved liver function) of the patients had achieved clinical recompensation within 120 weeks. Patients with baseline MELD scores > 15 after active antiviral therapy achieved higher recompensation than patients with baseline MELD scores ≤15 [50/74 (67.6%) vs. 109/209 (52.2%), χ (2) = 5.275, P = 0.029]. Conclusion: Antiviral therapy can significantly improve the prognosis of patients with hepatitis B virus-related decompensated cirrhosis. The majority of patients (56.2%) had achieved recompensation. Patients with severe disease did not have a lower probability of recompensation at baseline than other patients.
Humans
;
Hepatitis B virus/genetics*
;
Hepatitis B, Chronic/drug therapy*
;
Antiviral Agents/adverse effects*
;
Esophageal and Gastric Varices/complications*
;
Liver Cirrhosis/complications*
;
Treatment Outcome
;
Gastrointestinal Hemorrhage/complications*
;
Hepatitis B/drug therapy*
5.Effect of Asiaticoside on Expression of Th17/Treg Cells in DBA/1 Mice with Collagen-Induced Arthritis
Hui-jie LUAN ; Lian-hua HE ; Juan HE ; Hong-ying SHAN ; Yi-ping HU ; Qing-wen WANG
Chinese Journal of Experimental Traditional Medical Formulae 2022;28(4):76-83
ObjectiveTo observe the effect of asiaticoside (AC) on the expression of T helper 17 (Th17) cells and regulatory T (Treg) cells in DBA/1 mice with collagen-induced arthritis (CIA). MethodMale SPF DBA/1 mice were randomized into six groups according to body weight: control group, CIA group, methotrexate group (MTX group, ip, 0.5 mg·kg-1), and AC low-, medium-, and high-dose groups (ig, 5, 15, 45 mg·kg-1, respectively). Modeling was performed in rats other than the control group. To be specific, they were immunized with bovine type Ⅱ collagen and complete Freund's adjuvant on the first day and with bovine type Ⅱ collagen and incomplete Freund's adjuvant on the 21st day. Administration began on the day of the second immunization, once a day for 28 days. On the 49th day, related tissues were collected. Then, hematoxylin-eosin (HE) staining was performed to observe the pathological changes of the joints. Immunohistochemical method was used to detect the expression of interleukin-17 (IL-17) and forkhead box protein-3 (FoxP3), the markers of Th17 and Treg cells, respectively, immunofluorescence double staining the expression of IL-17 and FoxP3 in CD4+T cells of mouse joint tissue, and flow cytometry the proportions of Th17 and Treg cells in mouse lymph nodes. ResultCompared with the control group, CIA group demonstrated joint disorder, damage of articular cartilage and bone, severe bone erosion (P<0.01), increase in stained CD4 and IL-17 and the integral absorbance (IA) (P<0.01), decrease in stained FoxP3 and the IA (P<0.01), rise of Th17/Treg ratio (P<0.01), elevation of Th17 expression in mouse lymph nodes (P<0.01), and reduction in Treg expression (P<0.01). Compared with CIA group, MTX group and three AC groups showed normal joints, alleviated bone erosion and damage, intact and smooth joint surface, and decrease in stained IL-17 and IA (P<0.05, P<0.01), and MTX group and AC medium-dose and high-dose groups registered decrease in stained CD4 and IA (P<0.01) and reduction in Th17/Treg ratio (P<0.05, P<0.01). Moreover, AC medium-dose and high-dose groups showed rise in stained FoxP3 and IA (P<0.05, P<0.01). In the lymph nodes of mice, decrease in expression of Th17 cells (P<0.05, P<0.01) and the increase in expression of Treg cells (P<0.05, P<0.01) were observed in all the three AC group. ConclusionAC can regulate Th17/Treg balance by inhibiting the expression of Th17 cells and promoting the expression of Treg cells in CIA mice.
6.A multicenter retrospective study on the efficacy of different anti-reflux reconstruction methods after proximal gastrectomy for gastric cancer.
Li YANG ; Jian Zhang WU ; Jun YOU ; Lian FAN ; Chang Qing JING ; Quan WANG ; Su YAN ; Jiang YU ; Lu ZANG ; Jia Di XING ; Wen Qing HU ; Fenglin LIU
Chinese Journal of Surgery 2022;60(9):838-845
Objective: To examine the clinical efficacy of 3 anti-reflux methods of digestive tract reconstruction after proximal gastrectomy for gastric cancer. Methods: The clinical data and follow-up data of gastric cancer patients who underwent anti-reflux reconstruction after proximal gastrectomy in 11 medical centers of China from September 2016 to August 2021 were retrospectively collected, including 273 males and 65 females, aging of (63±10) years (range: 28 to 91 years). Among them, 159 cases were performed with gastric tube anastomosis (GTA), 107 cases with double tract reconstruction (DTR), and 72 cases with double-flap technique (DFT), respectively. The duration of operation, length of postoperative hospital stay and early postoperative complications (referring to Clavien-Dindo classification) of different anti-reflux reconstruction methods were assessed. Body mass index, hemoglobin and albumin were used to reflect postoperative nutritional status. Reflux esophagitis was graded according to Los Angeles criteria based on the routinely gastroscopy within 12 months after surgery. The postoperative quality of life (QoL) was evaluated by Visick score system. The ANOVA analysis, Kruskal-Wallis rank sum test, χ2 test and Fisher's exact test were used for comparison between multiple groups, and further comparison among groups were performed with LSD, Tamhane's test or Bonferroni corrected χ2 test. The mixed effect model was used to compare the trends of Body mass index, hemoglobin and albumin over time among different groups. Results: The operation time of DFT was significantly longer than that of GTA and DTR ((352±63) minutes vs. (221±66) minutes, (352±63) minutes vs. (234±61) minutes, both P<0.01). The incidence of early complications with Clavien-Dindo grade Ⅱ to Ⅴ in GTA, DFT and DTR groups was 17.0% (27/159), 9.7% (7/72) and 10.3% (11/107), respectively, without significant difference among these three groups (χ2=3.51, P=0.173). Body mass index decreased more significantly in GTA than DFT group at 6 and 12 months after surgery (mean difference=1.721 kg/m2, P<0.01; mean difference=2.429 kg/m2, P<0.01). body mass index decreased significantly in DTR compared with DFT at 12 months after surgery (mean difference=1.319 kg/m2, P=0.027). There was no significant difference in hemoglobin or albumin fluctuation between different reconstruction methods perioperative. The incidence of reflux esophagitis one year after surgery in DTR group was 12.9% (4/31), which was lower than that in DFT (45.9% (17/37), χ2=8.63, P=0.003). Follow-up of postoperative quality of life showed the incidence of Visick grade 2 to 4 in DFT group was lower than that in GTA group (10.4% (7/67) vs. 34.6% (27/78), χ2=11.70, P=0.018), while there was no significant difference between DFT and DTR group (10.4% (7/67) vs. 22.2% (8/36, P>0.05). Conclusions: Compared with GTA and DTR, DFT is more time-consuming, but there is no significant difference in early complications among three methods. DFT reconstruction is more conducive to maintain postoperative nutritional status and improve QoL, especially compared with GTA. The risk of reflux esophagitis after DTR reconstruction is lower than that of DFT.
Aged
;
Albumins
;
Esophagitis, Peptic/surgery*
;
Female
;
Gastrectomy/methods*
;
Hemoglobins
;
Humans
;
Male
;
Middle Aged
;
Quality of Life
;
Retrospective Studies
;
Stomach Neoplasms/surgery*
7.A multicenter epidemiological study of acute bacterial meningitis in children.
Cai Yun WANG ; Hong Mei XU ; Jiao TIAN ; Si Qi HONG ; Gang LIU ; Si Xuan WANG ; Feng GAO ; Jing LIU ; Fu Rong LIU ; Hui YU ; Xia WU ; Bi Quan CHEN ; Fang Fang SHEN ; Guo ZHENG ; Jie YU ; Min SHU ; Lu LIU ; Li Jun DU ; Pei LI ; Zhi Wei XU ; Meng Quan ZHU ; Li Su HUANG ; He Yu HUANG ; Hai Bo LI ; Yuan Yuan HUANG ; Dong WANG ; Fang WU ; Song Ting BAI ; Jing Jing TANG ; Qing Wen SHAN ; Lian Cheng LAN ; Chun Hui ZHU ; Yan XIONG ; Jian Mei TIAN ; Jia Hui WU ; Jian Hua HAO ; Hui Ya ZHAO ; Ai Wei LIN ; Shuang Shuang SONG ; Dao Jiong LIN ; Qiong Hua ZHOU ; Yu Ping GUO ; Jin Zhun WU ; Xiao Qing YANG ; Xin Hua ZHANG ; Ying GUO ; Qing CAO ; Li Juan LUO ; Zhong Bin TAO ; Wen Kai YANG ; Yong Kang ZHOU ; Yuan CHEN ; Li Jie FENG ; Guo Long ZHU ; Yan Hong ZHANG ; Ping XUE ; Xiao Qin LI ; Zheng Zhen TANG ; De Hui ZHANG ; Xue Wen SU ; Zheng Hai QU ; Ying ZHANG ; Shi Yong ZHAO ; Zheng Hong QI ; Lin PANG ; Cai Ying WANG ; Hui Ling DENG ; Xing Lou LIU ; Ying Hu CHEN ; Sainan SHU
Chinese Journal of Pediatrics 2022;60(10):1045-1053
Objective: To analyze the clinical epidemiological characteristics including composition of pathogens , clinical characteristics, and disease prognosis acute bacterial meningitis (ABM) in Chinese children. Methods: A retrospective analysis was performed on the clinical and laboratory data of 1 610 children <15 years of age with ABM in 33 tertiary hospitals in China from January 2019 to December 2020. Patients were divided into different groups according to age,<28 days group, 28 days to <3 months group, 3 months to <1 year group, 1-<5 years of age group, 5-<15 years of age group; etiology confirmed group and clinically diagnosed group according to etiology diagnosis. Non-numeric variables were analyzed with the Chi-square test or Fisher's exact test, while non-normal distrituction numeric variables were compared with nonparametric test. Results: Among 1 610 children with ABM, 955 were male and 650 were female (5 cases were not provided with gender information), and the age of onset was 1.5 (0.5, 5.5) months. There were 588 cases age from <28 days, 462 cases age from 28 days to <3 months, 302 cases age from 3 months to <1 year of age group, 156 cases in the 1-<5 years of age and 101 cases in the 5-<15 years of age. The detection rates were 38.8% (95/245) and 31.5% (70/222) of Escherichia coli and 27.8% (68/245) and 35.1% (78/222) of Streptococcus agalactiae in infants younger than 28 days of age and 28 days to 3 months of age; the detection rates of Streptococcus pneumonia, Escherichia coli, and Streptococcus agalactiae were 34.3% (61/178), 14.0% (25/178) and 13.5% (24/178) in the 3 months of age to <1 year of age group; the dominant pathogens were Streptococcus pneumoniae and the detection rate were 67.9% (74/109) and 44.4% (16/36) in the 1-<5 years of age and 5-<15 years of age . There were 9.7% (19/195) strains of Escherichia coli producing ultra-broad-spectrum β-lactamases. The positive rates of cerebrospinal fluid (CSF) culture and blood culture were 32.2% (515/1 598) and 25.0% (400/1 598), while 38.2% (126/330)and 25.3% (21/83) in CSF metagenomics next generation sequencing and Streptococcus pneumoniae antigen detection. There were 4.3% (32/790) cases of which CSF white blood cell counts were normal in etiology confirmed group. Among 1 610 children with ABM, main intracranial imaging complications were subdural effusion and (or) empyema in 349 cases (21.7%), hydrocephalus in 233 cases (14.5%), brain abscess in 178 cases (11.1%), and other cerebrovascular diseases, including encephalomalacia, cerebral infarction, and encephalatrophy, in 174 cases (10.8%). Among the 166 cases (10.3%) with unfavorable outcome, 32 cases (2.0%) died among whom 24 cases died before 1 year of age, and 37 cases (2.3%) had recurrence among whom 25 cases had recurrence within 3 weeks. The incidences of subdural effusion and (or) empyema, brain abscess and ependymitis in the etiology confirmed group were significantly higher than those in the clinically diagnosed group (26.2% (207/790) vs. 17.3% (142/820), 13.0% (103/790) vs. 9.1% (75/820), 4.6% (36/790) vs. 2.7% (22/820), χ2=18.71, 6.20, 4.07, all P<0.05), but there was no significant difference in the unfavorable outcomes, mortility, and recurrence between these 2 groups (all P>0.05). Conclusions: The onset age of ABM in children is usually within 1 year of age, especially <3 months. The common pathogens in infants <3 months of age are Escherichia coli and Streptococcus agalactiae, and the dominant pathogen in infant ≥3 months is Streptococcus pneumoniae. Subdural effusion and (or) empyema and hydrocephalus are common complications. ABM should not be excluded even if CSF white blood cell counts is within normal range. Standardized bacteriological examination should be paid more attention to increase the pathogenic detection rate. Non-culture CSF detection methods may facilitate the pathogenic diagnosis.
Adolescent
;
Brain Abscess
;
Child
;
Child, Preschool
;
Escherichia coli
;
Female
;
Humans
;
Hydrocephalus
;
Infant
;
Infant, Newborn
;
Male
;
Meningitis, Bacterial/epidemiology*
;
Retrospective Studies
;
Streptococcus agalactiae
;
Streptococcus pneumoniae
;
Subdural Effusion
;
beta-Lactamases
8.Effect of Fangji Huangqitang on DBA/1 Mice Collagen Induced Arthritis and Synovial Angiogenesis
Lian-hua HE ; Hui-jie LUAN ; Hong-ying SHAN ; Bo YANG ; Juan HE ; Yi-ping HU ; Jia-jing DAI ; Hui-juan WAN ; Chong-zhou FANG ; Qing-wen WANG
Chinese Journal of Experimental Traditional Medical Formulae 2021;27(17):16-23
Objective:To observe the effect of Fangji Huangqitang (FJHQT) on collagen induced arthritis (CIA) and synovial angiogenesis in DBA/1 mice. Method:DBA/1 mice were randomly divided into normal group, CIA group and FJHQT group. DBA/1 mice in CIA group and FJHQT group were immunized with bovine type Ⅱ collagen and complete Freund's adjuvant on the first day, and DBA/1 mice were immunized with bovine type Ⅱ collagen and incomplete Freund's adjuvant on the 21st day to establish CIA model. On the day of the second immunization, the drug was given by gavage once a day for 28 days. On the 22nd day, the arthritis score and other symptoms of CIA mice were observed. On the 49th day, Hematoxylin eosin (HE) staining was carried out to observe the angiogenesis in the synovium of CIA mice, the expression of vascular endothelial cell marker platelet endothelial cell adhesion molecule-1 (CD31) and vascular endothelial growth factor (VEGF) in the synovium of CIA mice were detected. Immunofluorescence double staining was used to detect the mature and immature vessels in the synovium of CIA mice. And the microvascular growth of the rat thoracic aortic ring was induced by VEGF (20 μg·L-1). The effects of FJHQT (0.25, 0.5, 1 g·L-1) at different concentrations were observed under microscope. Result:Compared with the normal group, the inflammation, joints, red and swelling of the inflammatory joints of the CIA group were significantly increased (
9.Exosomes Derived from Hydroquinone-transformed Human Bronchial Epithelial Cells Inhibited Recipient Cell Apoptosis by transferring miR-221.
Hong Yi XIAN ; Ying CHEN ; Jia Ying ZHANG ; Mei Lin TANG ; Zhen Wei LIAN ; Ran JIANG ; Zu Qing HU ; Yan Feng LI ; Da Lin HU
Biomedical and Environmental Sciences 2021;34(7):520-527
Objective:
Although benzene is a confirmed environmental carcinogen, the mechanism of its carcinogenicity remains largely unclear. The suggested oncogene, miR-221, is elevated and plays important roles in various tumors, but its role in benzene-induced carcinogenesis remains unknown.
Methods:
In the present study, we constructed hydroquinone (HQ, a representative metabolite of benzene with biological activity)-transformed malignant cell line (16HBE-t) and analyzed the level of miR-221 in it with qRT-PCR. Exosomes from 16HBE-t cells incubated with or without an miR-221 inhibitor were isolated by ultracentrifugation, characterized by transmission electron microscopy and laser scanning confocal microscope, and then transfected into 16HBE cells. The effects of exosomal miR-221 on apoptosis induced by HQ in recipient cells were determined using flow cytometry.
Results:
The amount of miR-221 in 16HBE-t was significantly increased compared with controls. When recipient cells ingested exosomes derived from 16HBE-t, miR-221 was increased, and apoptosis induced by HQ was inhibited. Blocking miR-221 in 16HBE-t using an inhibitor did not significantly alter miR-221 or apoptosis in recipient cells.
Conclusion
Exosomal miR-221 secreted by 16HBE-t inhibits apoptosis induced by HQ in normal recipient cells.
Apoptosis
;
Bronchi/cytology*
;
Cell Line, Transformed
;
Epithelial Cells
;
Exosomes
;
Humans
;
Hydroquinones
;
MicroRNAs
10.Association of cardiovascular diseases with milk intake among general Chinese adults.
Xin-Yan WANG ; Fang-Chao LIU ; Xue-Li YANG ; Jian-Xin LI ; Jie CAO ; Xiang-Feng LU ; Jian-Feng HUANG ; Ying LI ; Ji-Chun CHEN ; Lian-Cheng ZHAO ; Chong SHEN ; Dong-Sheng HU ; Ying-Xin ZHAO ; Ling YU ; Xiao-Qing LIU ; Xian-Ping WU ; Dong-Feng GU
Chinese Medical Journal 2020;133(10):1144-1154
BACKGROUND:
The association of milk intake with cardiovascular disease (CVD) and cause-specific mortality remained controversial and evidence among the Chinese population was limited. We aimed to study the relationship between milk intake and CVDs among general Chinese adults.
METHODS:
A total of 104,957 participants received questionnaire survey. Results of physical examination such as anthropometric measurements and biochemical tests during 2007 to 2008, demographic data and their information on milk intake were collected through standardized questionnaires. Cox proportional hazard regression models were used to calculate hazard ratios (HRs) and their corresponding 95% confidence intervals (CIs) of CVD incidence, cause-specific mortality and all-cause mortality related to milk intake. Restricted cubic splines (RCSs) were applied to examine dose-response associations.
RESULTS:
Among the 91,757 participants with a median follow-up period of 5.8 years, we documented 3877 CVD cases and 4091 all-cause deaths. Compared with participants who never consumed milk, the multivariate-adjusted HRs (95% CIs) of CVD incidence for 1 to 150 g/day, 151 to 299 g/day, and ≥300 g/day were 0.94 (0.86-1.03) (P > 0.05), 0.77 (0.66-0.89) (P < 0.05), and 0.59 (0.40-0.89) (P < 0.05), respectively; each 100 g increase of daily milk intake was associated with 11% lower risk of CVD incidence (HR, 0.89; 95% CI: 0.85-0.94; P < 0.001), and 11% lower risk of CVD mortality (HR, 0.89; 95% CI: 0.82-0.97; P = 0.008) after adjustment for age, sex, residential area, geographic region, education level, family history of CVD, smoking, alcohol drinking, physical activity level, body mass index, and healthy diet status (ideal or not). RCS analyses also showed a linear dose-response relationship with CVD (P for overall significance of the curve <0.001; P for non-linearity = 0.979; P for linearity <0.001) and stroke (P for overall significance of the curve = 0.010; P for non-linearity = 0.998; P for linearity = 0.002) incidence, and CVD mortality (P for overall significance of the curve = 0.045; P for non-linearity = 0.768; P for linearity = 0.014) within the current range of daily milk intake.
CONCLUSIONS
Daily milk intake was associated with lower risk of CVD incidence and mortality in a linear inverse relationship. The findings provide new evidence for dietary recommendations in CVD prevention among Chinese adults and people with similar dietary pattern in other countries.

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